/* CSC 381 interactive modules - shared chrome.
   Chart colors come from the validated dataviz palette; site chrome is WCU purple/gold. */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11,11,11,0.10);
  --brand: #3A1E5C;
  --brand-2: #5B3A87;
  --gold: #F0B323;
  --gold-ink: #7a5200;
  --chip-on: #3A1E5C;
  --chip-on-ink: #ffffff;
  /* series slots (light) */
  --c1: #2a78d6;  --c2: #eb6834;  --c3: #1baf7a;      /* class 1 / 2 / 3 */
  --sf: #4a3aa7;  --sm: #eda100;                      /* female / male   */
  --sv: #008300;  --sd: #e87ba4;                      /* survived / died */
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --ink: #ffffff; --ink-2: #c3c2b7;
    --muted: #898781; --grid: #2c2c2a; --axis: #383835; --border: rgba(255,255,255,0.10);
    --brand: #2a1544; --brand-2: #5B3A87; --gold: #F0B323; --gold-ink: #F0B323;
    --chip-on: #F0B323; --chip-on-ink: #1a1a19;
    --c1: #3987e5; --c2: #d95926; --c3: #199e70;
    --sf: #9085e9; --sm: #c98500;
    --sv: #008300; --sd: #d55181;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --ink: #ffffff; --ink-2: #c3c2b7;
  --muted: #898781; --grid: #2c2c2a; --axis: #383835; --border: rgba(255,255,255,0.10);
  --brand: #2a1544; --brand-2: #5B3A87; --gold: #F0B323; --gold-ink: #F0B323;
  --chip-on: #F0B323; --chip-on-ink: #1a1a19;
  --c1: #3987e5; --c2: #d95926; --c3: #199e70;
  --sf: #9085e9; --sm: #c98500;
  --sv: #008300; --sd: #d55181;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page); color: var(--ink);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--brand-2); }
:root[data-theme="dark"] a { color: var(--gold); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) a { color: var(--gold); } }

.topbar {
  background: var(--brand); color: #fff; border-bottom: 4px solid var(--gold);
  padding: 10px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.topbar .crumb { font-size: 13px; letter-spacing: .04em; text-transform: uppercase; opacity: .9; }
.topbar .crumb b { color: var(--gold); font-weight: 700; }
.topbar a { color: #fff; text-decoration: none; font-size: 14px; }
.topbar a:hover { text-decoration: underline; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 24px; }
h1 { font-size: 28px; margin: 0 0 4px; }
.sub { color: var(--ink-2); margin: 0 0 18px; max-width: 78ch; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px;
}
.footer { color: var(--muted); font-size: 13px; margin: 28px 0 8px; }

/* module index */
.modules { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; margin-top: 18px; }
.module { display: block; text-decoration: none; color: inherit; position: relative; min-height: 150px; }
.module .num {
  width: 34px; height: 34px; border-radius: 50%; background: var(--gold); color: #1a1a19;
  font-weight: 700; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 10px;
}
.module h2 { font-size: 18px; margin: 0 0 6px; }
.module p { margin: 0; color: var(--ink-2); font-size: 14px; }
.module.live:hover { border-color: var(--brand-2); box-shadow: 0 2px 10px rgba(0,0,0,.08); }
.module.soon { opacity: .62; }
.module .tag { position: absolute; top: 14px; right: 14px; font-size: 11px; letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 999px; border: 1px solid var(--border); color: var(--ink-2); }
.module.live .tag { background: var(--gold); color: #1a1a19; border-color: transparent; }

/* ---------------------------------------------------------------- home page */
.wrap.narrow { max-width: 900px; }
.hero { padding: 10px 0 6px; }
.hero h1 { font-size: 34px; margin: 0 0 6px; letter-spacing: -0.01em; }
.hero .tag { color: var(--ink-2); font-size: 15px; margin: 0; max-width: 70ch; }
.hero .tag b { color: var(--ink); font-weight: 600; }
.section { margin-top: 34px; }
.section > h2 {
  font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2);
  margin: 0 0 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.topbar nav { display: flex; gap: 18px; align-items: center; }

/* one row that is a link: used for the paper teaser on the home page */
.rowlink { display: block; text-decoration: none; color: inherit; }
.rowlink:hover { border-color: var(--brand-2); box-shadow: 0 2px 10px rgba(0,0,0,.08); }
.rowlink h3 { font-size: 18px; margin: 0 0 6px; line-height: 1.3; }
.rowlink .meta { font-size: 13px; color: var(--muted); margin: 0 0 8px; }
.rowlink p { margin: 0; color: var(--ink-2); font-size: 14px; }
.rowlink .more { display: inline-block; margin-top: 10px; font-size: 13px; color: var(--brand-2); font-weight: 600; }
:root[data-theme="dark"] .rowlink .more { color: var(--gold); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .rowlink .more { color: var(--gold); } }

/* ---------------------------------------------------------------- research */
.paper { margin-bottom: 20px; }
.paper h2 { font-size: 22px; line-height: 1.25; margin: 0 0 8px; }
.paper .authors { font-size: 15px; margin: 0 0 2px; }
.paper .venue { font-size: 13.5px; color: var(--muted); margin: 0 0 14px; }
.badge {
  display: inline-block; font-size: 11px; letter-spacing: .05em; text-transform: uppercase;
  font-weight: 700; padding: 3px 8px; border-radius: 999px; background: var(--gold); color: #1a1a19;
  vertical-align: 2px; margin-left: 8px;
}
.paper h3 {
  font-size: 12px; letter-spacing: .07em; text-transform: uppercase; color: var(--ink-2);
  margin: 22px 0 8px;
}
.paper p { font-size: 14.5px; line-height: 1.6; margin: 0 0 12px; }
.paper ul { font-size: 14.5px; line-height: 1.6; margin: 0 0 12px; padding-left: 20px; }
.paper li { margin-bottom: 7px; }
.btns { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 4px; }
.btn {
  display: inline-flex; align-items: center; gap: 7px; text-decoration: none;
  font-size: 14px; font-weight: 600; padding: 9px 16px; border-radius: 8px;
  background: var(--brand); color: #fff; border: 1px solid transparent;
}
.btn:hover { background: var(--brand-2); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn.ghost:hover { background: transparent; border-color: var(--brand-2); }
:root[data-theme="dark"] .btn { background: var(--brand-2); color: #fff; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn { background: var(--brand-2); color: #fff; } }

.tablewrap { overflow-x: auto; margin: 0 0 8px; }
table.data { border-collapse: collapse; font-size: 13.5px; font-variant-numeric: tabular-nums; min-width: 560px; }
table.data th, table.data td { padding: 7px 14px 7px 0; border-bottom: 1px solid var(--grid); text-align: right; white-space: nowrap; }
table.data th:first-child, table.data td:first-child { text-align: left; padding-right: 26px; }
table.data.twolabel th:nth-child(2), table.data.twolabel td:nth-child(2) { text-align: left; padding-right: 26px; }
table.data thead th { color: var(--ink-2); font-weight: 600; border-bottom: 2px solid var(--axis); }
table.data tr.best td { font-weight: 700; }
table.data tr.best td:first-child { color: var(--brand-2); }
:root[data-theme="dark"] table.data tr.best td:first-child { color: var(--gold); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) table.data tr.best td:first-child { color: var(--gold); } }
.caption { font-size: 12.5px; color: var(--muted); line-height: 1.55; margin: 6px 0 0; }

pre.bib {
  background: #241635; color: #e8e0f5; border-radius: 10px; padding: 14px 16px; overflow-x: auto;
  font-size: 12.5px; line-height: 1.5; font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  margin: 0;
}
.bibwrap { position: relative; }
.copy {
  position: absolute; top: 10px; right: 10px; font: inherit; font-size: 12px; font-weight: 600;
  padding: 4px 10px; border-radius: 6px; cursor: pointer;
  background: rgba(255,255,255,.12); color: #e8e0f5; border: 1px solid rgba(255,255,255,.22);
}
.copy:hover { background: rgba(255,255,255,.22); }
.note {
  border-left: 3px solid var(--gold); padding: 2px 0 2px 14px; margin: 16px 0;
  font-size: 14px; color: var(--ink-2); line-height: 1.6;
}